Just fitted the Arrow full system getting ready for the british summer, it sounds and looks awesome - aint tested it yet though, but for noise and looks id get it everytime...will update on performace once the k+n, pc3 and dyno is all up and runnin..

 

So when you said ....
That was if you removed the servo , correct?
Since most people just remove the cables and leave the servo they should be fine with the stock ECU.

 

Yeah I just removed the cables, made sure i repositioned the servo back to its original position before the ignition was switched back on to avoid the Fi light coming in. Runs a peach so why remove it at all, it can`t weigh much.

 

arrow
moriwaki
arata
sato
devil
leovince
jardine
termignoni was ok...

 

I went with the Micron twin-outlet myself. I'm an older dude and didn't want anything too loud, just a nicer sound. I've had Micron on my last three bikes and have been completely satisfied with the quality. I'm not THAT into more ponies but it did jump just over three. You know what you are looking for, we just provide our opinions!!! Good luck with it, post some pics with the finished product.